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ANADE

Advances in Numerical and Analytical tools for DEtached flow

About the Project

The flow around an aircraft configuration is complex.

Regions of detached flow can be important and its effects require quantification and control. Among the undesired effects are lose of aerodynamic performance and aeroacoustic generated noise. ANADE aims at understanding and controlling detached flow and its effects.

ANADE-Fp-Science
Development of proper numerical tools for detached flow prediction is the main scientific objective.

ABOUT US

ANADE is an Initial Training Network (ITN) project funded under the European Commission' Seventh Framework Programme (FP7) within People work programme (Marie Curie actions).

ANADE | Advances in Numerical and Analytical tools for DEtached flow prediction started on the 1st of January 2012. The project is coordinated by the Universidad Politécnica de Madrid (UPM) and consists of 10 partners from 5 different European countries brought together by the common interest in fluid dynamics research applied to aeronautical sector. The aim of the project is to provide a common training program which addresses the shortage of scientists and engineers in Europe by offering research training based on strong collaboration between industry and academia.

During the 4 years of the project 14 early stage researchers and 3 experienced researchers will be employed and trained within ANADE.

The Science

The scientific topics of the project will be focused on the prediction and control of highly detached massively separated flows, with aeroacoustic detection and propagation.

A contribution to a better understanding of the underlying physics and the advancement of new numerical methods better suited for these flows is expected as a scientific outcome of the project.

The training of the fellows is focused on acquiring awareness of fluid dynamics methods that contribute to a deeper understanding of environmental fluid mechanics problems in a series of applications of key technological relevance which could be implemented within the airplane design process.

It is intended to extend the range of simulation available today, both in physics understanding and in new technologies. Direct impact is expected on methods that are based on the complicated analysis of flow separation (by introducing new techniques that provide insight about the stability of a given design), noise generation (early simulation capabilities based on current technologies in use), novel simulation techniques (that will reduce the design loop cost by reduction of resources needed to perform the same simulation), solution quality increase (by improving the mesh generation quality assessment).

  1. WP1
  2. WP2
  3. WP3
  4. WP4

WP1

Efficient numerical methods for highly detached flows

Leader: Spencer Sherwin (ICL)

  • UPM, ICL: unsteady high order Discontinuous Galerkin methods for compressible flows.
  • NUMECA: developments of high order schemes for implementation in their commercial packages.
  • ONERA: the Variational Multi-Scale (VMS) approach for large eddy simulation will be used with a high-order Discontinuous Galerkin method for the space discretization. h/p adaptation techniques will be implemented in this context.
  • K.U. LEUVEN: will benefit of all partners’ experience to implement a high order linearized Euler equations solver to describe noise propagation.
  • VKI: will focus on continuous residual-based higher order discretizations.

WP2

Receptivity and sensitivity analyses. Uncertainties and Mesh adaptation algorithms

Leader: Vincent Couaillier (ONERA)

  • UCAM: will develop adjoint solvers, which include turbulence models and capabilities to manage complex geometries. The inclusion of turbulence models in an adjoint solver raises fundamental questions about the separation of time and length scales and the validity of detached solution.
  • ONERA: will develop tools for stochastic analysis based on NIPCM (Non-Intrusive Polynomial Chaos Method) and Monte-Carlo method combined with surrogate models to predict transition from steady flow to buffeting phenomenon.
  • AIRBUS: application of adjoint methodologies and NIPCM to error estimation, mesh adaptation and sensibility analysis.
  • UPM: application of error estimation methods to mesh adaptation problems in non-converged solutions. Investigation of h/p adaptation.

WP3

Computational Aeroacoustics

Leader: Christophe Schram (VKI)

  • K.U. LEUVEN, VKI: are focusing on the extraction of accurate aeroacoustic source information from unsteady, compressible flow simulations and will extend this approach based on deterministic flow model towards statistical source models, e.g. based on Amiet’s theory and linearized airfoil theory.
  • NUMECA, K.U. LEUVEN will study the acoustic radiation in non-quiescent media for complex geometries (avoiding possible instabilities of the LEE-solution due to strong mean flow gradients).
  • AIRBUS: is interested not only on the accurate prediction of the sound levels, but also on the relative evaluation of the different solutions in the design process.
  • UPM, ICL: may evaluate the performance of high-order methods in aeroacoustic prediction and propagation.

WP4

Investigation of separated flows by instability analysis

Leader: Leo Gonzalez (UPM)

  • UPM, ICL: will extend of current Bi/TriGlobal eigenvalue solvers capabilities to complex 3D geometries, compressible and high Reynolds numbers flows.
  • DLR: will apply the linear local and nonlinear non-local (PSE) stability analysis tools developed in the analysis of the instability and transition mechanisms of convectively unstable laminar separation bubbles, aiming for a better understanding, improved modeling and prediction of transition for this type of flows.
  • AIRBUS: will apply stability analysis to the prediction and characterization of complex aerodynamic configurations: transition, buffet or onset of unsteady flows.

Partners

Universidad Politecnica de Madrid Imperial College London Katholieke Universiteit Leuven University of Cambridge Office National d'Etudes et de Recherches Aerospatiales Deutsches Zentrum für Luft– und Raumfahrt Von Karman Institute Numerical Mechanics Applications Airbus Operations

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